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 GoOnThen
Stranger
Registered: 02/06/09
Posts: 801
Loc: Australia 
Last seen: 12 days, 20 hours
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 Re: I f#@ked up big time, help! ***Update***  [Re: GoOnThen]
#16011901 - 03/29/12 03:57 AM (1 year, 1 month ago) |
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Quote:
I've also used pyrethroids, not this one specifically, on my cacti without problems so I did think this quite weird. If the sun was down it may of had something to do with the secondary ingredient, Piperonyl butoxide, which is there as a synergist for the pyrethrum. Just guessing which doesn't help your cactus unfortunately.
I checked the material safety data sheets on both the yates product that I use and the multicrop one and both have close to the same amounts of pyrethrum and Piperonyl butoxide in them. 
Cheers
Got
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 karode13
Tāne Mahuta
Registered: 05/19/05
Posts: 7,311
Loc: LV-426
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Re: I f#@ked up big time, help! ***Update*** [Re: GoOnThen]
#16011923 - 03/29/12 04:07 AM (1 year, 1 month ago) |
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Maybe the pre mix is mixed at a stronger dilution.
Also broken link.
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Edited by karode13 (03/29/12 04:28 AM)
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russokeefe
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Re: I f#@ked up big time, help! ***Update*** [Re: karode13]
#16011950 - 03/29/12 04:22 AM (1 year, 1 month ago) |
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Thanks for the info Got. I used to use yates products on my large vegie patch I used to have. they always seemed to work the best. another question, rather than start a new thread I will ask here, with two small trichs I got from Bunnings, during repotting I noticed some very small white bugs at the base of the cactus just above the soil. they were the size of a pinhead. I havent noticed them since but was just wondering what they might be.
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Mostly_Harmless
wyrd bið ful aræd
Registered: 05/12/09
Posts: 1,439
Loc: England 
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Re: I f#@ked up big time, help! ***Update*** [Re: russokeefe]
#16011965 - 03/29/12 04:31 AM (1 year, 1 month ago) |
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Keep them quarantined until dealt with..
Could be mealies?
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Mundus vult decipi
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russokeefe
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Yeah the did look something like that. they were on the cactus and moved pretty fast. what damage do mealies do and how would I deal with them? Also there were none in the soil itself. only on base of cactus
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Mostly_Harmless
wyrd bið ful aræd
Registered: 05/12/09
Posts: 1,439
Loc: England
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They might be hiding amongst the roots. The eggs are tiny and if you miss one they will soon come back... They feed on plant sap, and can be a vector for infection too, cacti might end up rotting from the core outwards. 
Can be controlled with a few methods. Dish soap, insecticides, neem, isopropyl alcohol and more.
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Mundus vult decipi
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GoOnThen
Stranger
Registered: 02/06/09
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Loc: Australia
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Re: I f#@ked up big time, help! ***Update*** [Re: karode13]
#16011975 - 03/29/12 04:41 AM (1 year, 1 month ago) |
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Quote:
Also broken link.
Fixed 
Cheers
Got
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russokeefe
Stranger
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Re: I f#@ked up big time, help! ***Update*** [Re: GoOnThen]
#16012103 - 03/29/12 06:21 AM (1 year, 1 month ago) |
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I also heard mothballs placed in the soil can get rid of them. if they are hiding in the soil will pesticides get rid of them or do I need to remove all soil and repot?? I will probably try mothballs unless anyone thinks its a bad idea.
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Mostly_Harmless
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Registered: 05/12/09
Posts: 1,439
Loc: England
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Re: I f#@ked up big time, help! ***Update*** [Re: russokeefe]
#16012158 - 03/29/12 07:01 AM (1 year, 1 month ago) |
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I'd physically remove every last trace of soil and mealie from the roots and give it an insectidical bath. Their waxy coat they nest in helps a few to survive a good dunk. Then I'd keep them seperated for another couple of weeks until sure they are all eradicated. I had heard of mothballs in the pots for prevention but have no experience of it.
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Mundus vult decipi
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Mufungo
Coming at ya
Registered: 04/03/07
Posts: 2,637
Loc: Knowhere
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I've used Yates in the past with no trouble.. I'm quite baffled by the whole thing.
Yeah, you're probably right Karode, I'll get up early and chop them tomorrow before it spreads..
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Mufungo
Coming at ya
Registered: 04/03/07
Posts: 2,637
Loc: Knowhere
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BEWARE: AVOID MULTICROP INSECTICIDE SPRAY [Re: Mufungo]
#16015006 - 03/29/12 07:58 PM (1 year, 1 month ago) |
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I chopped the pedro this morning and this is what I found... It looks like the rot is still at the surface. I chopped it above and below the badly affected area, and they look sort of ok. When I cut through the badly affected area, it was like popping a blister and lots of fluid oozed out. I've put the cuts in a dim dry spot and am hoping that they might callus and that I might be able to plant them. But I'm kind of expecting the badly affected bits to disolve into mush. ...what do you think, should I perhaps do further surgery and chop the rotted bits away from the cuttings to try and save them?\
      
Multicrop chemical burns cacti
 
Multicrop chemical burns cacti
Edited by Mufungo (04/01/12 04:36 AM)
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Mufungo
Coming at ya
Registered: 04/03/07
Posts: 2,637
Loc: Knowhere
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Re: I f#@ked up big time, help! ***Update*** [Re: Mufungo]
#16015019 - 03/29/12 08:00 PM (1 year, 1 month ago) |
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Seeing as it's mainly affecting the surface, I'm going to test my luck and not detach the graft at this stage. But if I see the black moving upward, I will. At this stage it's got about 5mm clearance from the scion.
Damn Multicrop!!!
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GoOnThen
Stranger
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Re: I f#@ked up big time, help! ***Update*** [Re: Mufungo]
#16015268 - 03/29/12 08:45 PM (1 year, 1 month ago) |
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Get your self some sulphur dust if you don't have any and dust all of the areas that you have cut.
Looking at you pics more I would actually dust the whole pieces it won't do them any harm and It could help them heal
I have saved a couple of cuttings using sulphur that have had rot in them when I got them. It is good stuff.
Cheers
Got
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Mufungo
Coming at ya
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Posts: 2,637
Loc: Knowhere
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Re: I f#@ked up big time, help! ***Update*** [Re: GoOnThen]
#16015427 - 03/29/12 09:08 PM (1 year, 1 month ago) |
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I have tomato dust, it has sulphur and (I think) copper in it, to stop fungal infection. Will that do? I've used it on living cacti that have been cut with no trouble, but not sure about using it on a cutting.
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GoOnThen
Stranger
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Re: I f#@ked up big time, help! ***Update*** [Re: Mufungo]
#16015509 - 03/29/12 09:24 PM (1 year, 1 month ago) |
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I am not sure about the tomato dust I have only used straight sulphur but I would think if you have used it before it should be ok
Cheers
Got
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savage.renegade
Registered: 07/02/10
Posts: 984
Loc: Bay area
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Re: I f#@ked up big time, help! ***Update*** [Re: GoOnThen]
#16016868 - 03/30/12 01:36 AM (1 year, 1 month ago) |
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I feel for you bro. Hope they make a comeback
I just got the worst spider mite infestation I have seen.
My roses are covered with them.thousands. my other plants too 
now there starting to migrate to my cacti. Good luck
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  My first brigdesii seedling
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Mufungo
Coming at ya
Registered: 04/03/07
Posts: 2,637
Loc: Knowhere
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Cheers GOT, I have given them a dousing, now to see what happens.
I hope they recover too, SR! On a couple of the less affected pedros, I've sprayed them with this stuff called "drought guard" which puts a protective film on the skin. My rationale was that, if they've had the waxy skin has become porous because of the chemical burn, then maybe this stuff will offer a layer of protection. But I've only tried it on a couple of them just to see what happens. At this stage, I don't think I have much to lose. lol
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HarveyWalbanger
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Loc: 8b
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Re: I f#@ked up big time, help! ***Update*** [Re: Mufungo]
#16017466 - 03/30/12 04:48 AM (1 year, 1 month ago) |
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I know you didnt want to, but You might want to consider degrafting.. once that black rot makes it into the *vascular ring, it spreads upward like wild fire.
A few of us have had black rot come up from the bottom cutting, and it seemed like you just cant cut it off. when I see it comming from the bottom, I always recommend being very generous with the knife.
EDIT: *vascular ring, not meristem. No more late night posting for me.
Edited by HarveyWalbanger (03/30/12 05:20 PM)
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Mufungo
Coming at ya
Registered: 04/03/07
Posts: 2,637
Loc: Knowhere
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Yeah, I was going to cut it off, but thought twice after seeing with the pedro that it hadn't spread to the core. But I'm probably wishful thinking to think that it might recover now, as ya see in the photo, it looks pretty bad. I'll probably do the chop tomorrow..
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Mufungo
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Re: I f#@ked up big time, help! ***Update*** [Re: Mufungo] 1
#16020409 - 03/30/12 07:54 PM (1 year, 1 month ago) |
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I chopped the loph off and just in the nick of time by the looks, the black death was only millimeters away. I chopped through the stock, kinda on an angle, there's about 2cm to 2mm of stock left attached. So after it calluses, I might try to root the stock instead of regrafting. I'll store him somewhere safe and dry for the time being.. Next I'm looking at the big monstrose and thinking I'm going to maybe have to start chopping that up.
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